Dendronized Polystyrenes with Hydroxy and Amino Groups in the Periphery

Neubert, Ingo; Schlüter, A. Dieter

doi:10.1021/ma981195m

Cited by 45 publications

(49 citation statements)

References 25 publications

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“…Fre Â chet-type dendrons [19] are drawn in an abbreviated form, which is explained in Figure 3. The monomers are polymerized by radical polymerization (2, [5b, 20] 3, [21] 4, [22] 5, [23] 6, [24] 7, [25,26] 8, [27] 9, [28] 10, [24] 11, [29] and 12, [30] ), insertion polymerization (13 [31] ), ring-opening metathesis polymerization (ROMP) [32] (14 [33,34] ), Suzuki polycondensation (SPC) [35] with 17 (15 [36] and 16 [37] ) and 23 (20, [38] 21, [39] and 22 [39] ), polyaddition with 19 under polyurethane formation (18 [40] ), and Heck coupling of 24 with 25.…”

Section: Overview Of the Macromonomer Approachmentioning

confidence: 99%

“…These monomers have all been polymerized to the corresponding high molar mass materials P7, P8, P10, and P11 (step b) and their functional groups deprotected. For the use REVIEWS Dendronized Polymers of the somewhat uncommon Teoc protecting group, see reference [25]. Figure 18 shows 1 H NMR spectra of monomer 7(G2), the corresponding polymer P7(G2), and its deprotected counterpart.…”

Section: Modification Of Cylinder ªSurfacesºmentioning

confidence: 99%

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Dendronized Polymers: Synthesis, Characterization, Assembly at Interfaces, and Manipulation

Schlüter

Rabe

2000

Angew. Chem. Int. Ed.

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697

563

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Dendrimers are presently one of the most intensely studied classes of compounds because of their unusual structure. They can be described as a jungle of entangled branches traversed by winding trails which lead to sweet fruits and bright blossoms. On these trails one can reach the thicket's interior as well as find a way out. Expressed less lyrically, this thicket stands for regularly branched, densely packed structures, and the trails represent voids and channels not filled by bent back branches but by solvent. The fruit and blossoms are photochemically, electrochemically, or synthetically addressable units, catalytically active sites, etc., and the back and forth on the trails stands for transport processes. In a mathematical sense dendrimers are enveloped by an interface, which defines what is either in or out. This interface is shaped like a sphere if the trails are filled to bursting. Otherwise dendrimers are more flattened like amoeba, especially if in contact with a surface. The high density of the functional groups, the expansion of these compounds to a range of several nanometers, the existence of usable "surface" and transport possibilities in and with them have made dendrimers interesting candidates for many applications. This review describes how dendrimer construction and polymer synthesis were combined and used to move from fully or flattened spherical shapes to cylindrical ones. The shape-inducing influence of dendritic substituents can be driven to create nanoobjects with a cylindrical shape, which not only considerably widens the range of applications for the dendrimer class but also opens up new perspectives for supramolecular and polymer chemistry. Because of the sheer size of the described objects and complexity of shape-related properties, research in this area must necessarily be interdisciplinary. This article tries to mirror this by giving special attention not only to synthesis but also the characterization and behavior of these compounds in bulk and at interfaces. Furthermore, potential application fields are described.

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Section: Overview Of the Macromonomer Approachmentioning

confidence: 99%

Section: Modification Of Cylinder ªSurfacesºmentioning

confidence: 99%

Dendronized Polymers: Synthesis, Characterization, Assembly at Interfaces, and Manipulation

Schlüter

Rabe

2000

Angew. Chem. Int. Ed.

Self Cite

697

563

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“…Homopolymerization of the macromonomers by radical, transition metal catalyzed, or step-growth polymerization leads to the formation of the desired products. [70][71][72][73][74][75] A rich variety of macromonomer dendrons has been utilized, as shown in Scheme 14.…”

Section: Dendronized Polymersmentioning

confidence: 99%

The Strength of the Macromonomer Strategy for Complex Macromolecular Architecture: Molecular Characterization, Properties and Applications of Polymacromonomers

Hadjichristidis

Pitsikalis

Iatrou

et al. 2003

Macromol. Rapid Commun.

219

209

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The efficiency of the macromonomer (MM) synthetic strategy for the creation of nonlinear complex macromolecular architectures (miktoarm stars, α,ω‐branched polymers, random/exact comb and graft copolymers, dendritic polymers, molecular brushes) is reviewed. In addition, the solution/bulk properties and the potential applications of polymacromonomers (PMM), as well as new synthetic ideas are presented. The synthesis of macromonomers and living polymacromonomers in situ leads to many novel linear and nonlinear structures, as for example PMM‐b‐PS‐b‐PMM, (PS)2PMM. The use of multichlorosilylstyrenes as monomer/linking agents opens new ways for structures with multichain macromonomeric building blocks.The use of multichlorosilylstyrenes as monomer/linking agents opens new ways for structures having multichain macromonomeric building blocks.magnified imageThe use of multichlorosilylstyrenes as monomer/linking agents opens new ways for structures having multichain macromonomeric building blocks.

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“…[7] The selection of the optimum coupling chemistry and the method to quantify the coupling efficiency is therefore essential. Given our experience with amide formations, the known G1PS with two trimethlysilyl ethyloxy carbonyl (Teoc) protected peripheral amine groups was selected as the starting polymer [8] (Scheme 1) and the activated ester G1 dendrons 1 and 2 as growth reagents. [9] Compounds 1 and 2 were chosen because they can be prepared in large quantities, easily purified, and promised to give very high conversions.…”

mentioning

confidence: 99%

Extremely Long Dendronized Polymers: Synthesis, Quantification of Structure Perfection, Individualization, and SFM Manipulation

Shu

Schlüter

Ecker

et al. 2001

Angew. Chem. Int. Ed.

Self Cite

120

105

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Dendronized Polystyrenes with Hydroxy and Amino Groups in the Periphery

Cited by 45 publications

References 25 publications

Dendronized Polymers: Synthesis, Characterization, Assembly at Interfaces, and Manipulation

Dendronized Polymers: Synthesis, Characterization, Assembly at Interfaces, and Manipulation

The Strength of the Macromonomer Strategy for Complex Macromolecular Architecture: Molecular Characterization, Properties and Applications of Polymacromonomers

Extremely Long Dendronized Polymers: Synthesis, Quantification of Structure Perfection, Individualization, and SFM Manipulation

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